package org.example.jdbc;

import java.sql.*;
import java.util.Scanner;

/**
 * 3.注销用户功能；
 * 用户输入用户名，在数据库中将该条表记录删除；
 */
public class Demo03JDBC {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        Statement statement = connection.createStatement();
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名：");
        String username = scanner.nextLine();
        int i = statement.executeUpdate("DELETE FROM user WHERE username='" + username + "'");
        if (i > 0) {
            System.out.println("删除成功！");
        } else {
            System.out.println("用户不存在！");
        }
    }
}
